<h4 class="sHead">Tham khảo HTML/XHTML</h4>
<ul class="lNav">
<li><a href="/reference/tag/">Tham khảo HTML/XHTML</a></li>
<li><a href="/reference/tag/function_tag.php">Tag theo function</a></li>
<li><a href="/reference/tag/valid_doctype.php">Tag theo giá trị DTD</a></li>
<li><a href="/reference/tag/html4-xhtml.php">Tham khảo HTML4/XHTML</a></li>
<li><a href="/reference/tag/html5/index.php">Tham khảo HTML5</a></li>
<li><a href="/example/example_html.php">Xem thêm ví dụ về HTML</a></li>
</ul>